1)
1)
Lets derive the equation to be used
use:
p*V=n*R*T
p*V=(mass/molar mass)*R*T
p*molar mass=(mass/V)*R*T
p*molar mass=density*R*T
So, the one with greater molar mass will be most dense
Molar mass of CO2,
MM = 1*MM(C) + 2*MM(O)
= 1*12.01 + 2*16.0
= 44.01 g/mol
Molar mass of N2O,
MM = 2*MM(N) + 1*MM(O)
= 2*14.01 + 1*16.0
= 44.02 g/mol
Molar mass of Cl2 = 70.9 g/mol
Clearly, molar mass is highest for Cl2
So, Cl2 is most dense
Only 1 question at a time please
1. Which gas is most dense at 1.00 atm and 23·C? CO, (2 points) .N20, or...
A 125 mL glass bulb contains 0.138 g sample of propane, C3H8, at 22C. What is the pressure of this gas? [R = 0.0821 L atm mol-1 K-1] a. 0.61 atm b. 0.28 atm c. 0.045 atm d. 0.0061 atm e. 0.000045 atm Acetylene can be made by reacting calcium carbide with water: CaC2(s) + 2 H2O(l)→Ca(OH)2(s) + C2H2(g) What is the maximum volume of acetylene that can be obtained from 225 g of calcium carbide at 23C and 645...
Hw #3 Acetylene can be produced from calcium carbide and water: Cac,(s)+ 2 H2O(l) → C2H2(g) + Ca(OH)2(aq) In a CH118 experiment, acetylene gas was produced and collected over water It was found that 1.00 g of calcium carbide reacted to produce 290 ml of acetylene. How many grams of acetylene were produced? What was the percent yield for the reaction? Assume 22 °C and 750 torr. (760 torr 1 atm) HW #4 Assume there are 4.0 moles of a...
show work please 5. (2 points) Calcium carbide reacts with water to produce an unknown gas and calcium hydroxide. Suppose a 12.8 g sample of CaC2 in excess water produces 5.21 grams of gas in an evacuated 5.00 L glass bulb, with a pressure of 0.988 atm at 27 °C. What is the molar mass of the unknown gas? CaC2(s) + H20 (1) Ca(OH)2 (aq) + unknown gas a. 26.0 g/mol b. 64.1 g/mol c. 34.5 g/mol d. None of...
6. a. Calculate the density of sulfur hexafluoride gas at 709 torr and 23 C. b. Calculate the molar mass of a vapor that has a density of 7.125 g/L at 11 ∘C and 745 torr . c. Calcium hydride, CaH2, reacts with water to form hydrogen gas: CaH2(s)+2H2O(l)→Ca(OH)2(aq)+2H2(g) This reaction is sometimes used to inflate life rafts, weather balloons, and the like, where a simple, compact means of generating H2 is desired. How many grams of CaH2 are needed...
1. (9 points) Balance the following reactions: H3PO4(1) + HCIE) C4H3 + O2 CO2 + H2O PC15(s) + H2O LizNs) LiOH) + NH3(g) C3H12 + O2 CO2 + H2O 2. (12 points) Write and balance the equation based upon the following information. + H2O(1) Include the states of matter: a. Solid aluminum sulfate, carbon dioxide gas and liquid water are produced by the reaction of an aqueous solution of sulfuric acid and solid aluminum carbonate. b. The reaction of fluorine...
Calcium hydride, CaH2, reacts with water to form hydrogen gas. CaH2(s) + 2 H2O(l) Ca(OH)2(aq) + 2 H2(g) This reaction is sometimes used to inflate life rafts, weather balloons, and the like, where a simple, compact means of generating H2 is desired. How many grams of CaH2 are needed to generate 14.0 L of H2 gas if the pressure of H2 is 730. torr at 27°C? g
Calcium hydride, CaH2, reacts with water to form hydrogen gas. CaH2(s) + 2 H2O(l) Ca(OH)2(aq) + 2 H2(g) This reaction is sometimes used to inflate life rafts, weather balloons, and the like, where a simple, compact means of generating H2 is desired. How many grams of CaH2 are needed to generate 13.0 L of H2 gas if the pressure of H2 is 760. torr at 27°C? g
Calcium hydride (CaH2) reacts with water to form hydrogen gas: CaH2(s) + 2H2O(l) → Ca(OH)2(aq) + 2H2(g) How many grams of CaH2 are needed to generate 45.0 L of H2 gas at a pressure of 0.888 atm and a temperature of 32 °C?
3) Calcium hydride, Call, reacts with water to fomm lydrogen gas: CaH2 (s) +2 H2O (l)-Ca(OH)2 (aq) + 2 H2 (g) This reaction is sometimes used to inflate life rafts, weather balloons, and the like, when a simple, compact means of generating H is desired. How many gram generate 145 L of H2 gas if the pressure of He is 825 torr at 21°C? s of CalH are needed to
Calcium hydride, CaH2, reacts with water to form hydrogen gas: CaH2(s)+2H2O(l)→Ca(OH)2(aq)+2H2(g) This reaction is sometimes used to inflate life rafts, weather balloons, and the like, where a simple, compact means of generating H2 is desired. How many grams of CaH2 are needed to generate 146 L of H2 gas if the pressure of H2 is 827 torr at 22 ∘C?